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Style child element when hover on parent
...possible. Is there any solution possible through :hover CSS selectors. Actually I need to change color of options bar inside a panel when there is an hover on the panel.
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Argmax of numpy array returning non-flat indices
...rray([0]), array([2]))
This, comparing to argmax, returns coordinates of all elements equal to the maximum. argmax returns just one of them (np.ones(5).argmax() returns 0).
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Ruby Array find_first object?
...I also often find annoying that ruby documentation doesn't list methods of all inherited or included classes and modules.
– Mladen Jablanović
Mar 4 '10 at 17:33
4
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How to specify function types for void (not Void) methods in Java8?
...g (void). And this is what you want.
For instance, if I wanted to display all element in a list I could simply create a consumer for that with a lambda expression:
List<String> allJedi = asList("Luke","Obiwan","Quigon");
allJedi.forEach( jedi -> System.out.println(jedi) );
You can see a...
Generating a list of which files changed between hg versions
... consider using the "x::y" (DAG - Directed Acyclic Graph) range.
Given parallel changesets,
1--2---4
\---3
hg status --rev 1:4 would return (1,2,3,4),
i.e. anything between and including the endpoints, according to the local, numerical rev. This might (and most probably will) return different...
Go naming conventions for const
...your const element exposed to other packages. If you use UpperCamelCase or ALL_CAPS you'll be exporting it outside of your package. For this reason, I stick to lowerCamelCase for private const variables, and I recall reading this recommendation from someone relatively close to the Go project (or per...
How to get current route in Symfony 2?
... not a route. As such, Symfony doesn't know what route that is for. Typically, you have one route to one controller, so it may seem weird that this can't report anything besides "_internal", however, it is possible to create general-purpose controllers that get associated with more than one route ...
What is a “Bitmap heap scan” in a query plan?
... stay in memory, but you get the point).
A bitmap index scan will sequentially open a short-list of disk pages, and grab every applicable row in each one (hence the so-called recheck cond you see in query plans).
Note, as an aside, how clustering/row order affects the associated costs with either ...
Select count(*) from multiple tables
How can I select count(*) from two different tables (call them tab1 and tab2 ) having as result:
18 Answers
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How is the java memory pool divided?
...ap memory
The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays. The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects.
Eden Space: The pool fr...